Home / 2,862.78-4,296.09-1,013.90

Finding the Fourth Proportional to 2,862.78, 4,296.09 and 1,013.90

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Solution

The fourth proportional to 2,862.78, 4,296.09 and 1,013.90 is: 1,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.78 : 4,296.09 = 1,013.90 : x
  2. Step 2: Convert to fraction form
    2,862.78/4,296.09 = 1,013.90/x
  3. Step 3: Cross multiply
    2,862.78x = 4,296.09 × 1,013.90
  4. Step 4: Simplify right side
    2,862.78x = 4,355,784.17
  5. Step 5: Solve for x
    x = 4,355,784.17/2,862.78
  6. Step 6: Final answer
    x = 1,521.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.